Scientists estimate that around 10,000 year ago, only about _____ people inhabited the earth.
A)5 billion
B)5 trillion
C)5 thousand
D)5 million
E)zero (earth was created 6,000 years ago)

Question

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Scientists estimate that around 10,000 years ago, the global human population was approximately 5 million. This period corresponds to the end of the last Ice Age and the beginning of the Neolithic era, when agriculture started to spread, allowing for population growth.

Scientists Estimate That Around 10,000 Year Ago, Only About _____